Fedora18 hard drive installation of ISO ora18 is released on schedule, try to directly use GRUB2 LOOP device can be directly installed, eliminating the trouble of ISO pressure. Convenience. The command www.2cto.com is as follows: grub> loopback loop (hd0, 2)/Fedora18_i386/Fedora-18-i386-DVD.iso grub> linux (loop)/isolinux/vmlinuz linux repo = hd:/dev/sdb2: /Fedora18_i386 grub> initrd (loop)/isolinux/initrd. after img grub> boot, enter the graphical installation interface. In the repo = hd:/dev/sdb2:/Fedora18_i386 parameter, hd indicates hard disk installation,/dev/sdb2 indicates the partition where the ISO image is located, and/Fedora18_i386 indicates the directory where the ISO image is located. : It should be the delimiter required by the parameter format. Please modify the Directory and partition according to your ISO. Www.2cto.com for partition issues, after the Fedora18 installation program starts, it will set the hard disk installed on the computer to/dev/sda. I use a mobile hard disk to start the program to load Fedora18, start to use/dev/sda2 after hd:, but the installer always reports that the ISO file cannot be found, later I thought that after the installation program is started, I will change the mobile hard disk to/dev/sdb (only one local disk and one mobile hard disk), and change the hd: after the partition is changed to/dev/sdb2, You can smoothly enter the Fedora18 installation interface and complete system installation. Share with you to avoid detours.